Step-by-step explanation:
(3a + 2b β c) (a β b + 2c) Β
Expand (3a + 2b β c) (a β b + 2c) by multiplying each Β term in the first Β expression by each Β term in the second expression.
3a β
a + 3a (βb) + 3a (2c) + 2ba + 2b (βb) + 2b (2c) β ca β c (βb) β c (2c)
3 (a β
a) + 3a (βb) + 3a (2c) + 2ba + 2b (βb) + 2b (2c) β ca β c (βb) β c (2c)
3a^2 + 3a (βb) + 3a (2c) + 2ba + 2b (βb) + 2b (2c) β ca β c (βb) β c (2c)
Rewrite using the commutative property of multiplication.
3a^2 + 3 β
β1ab + 3a (2c) + 2ba + 2b (βb) + 2b (2c) β ca β c (βb) β c (2c)
3a^2 β 3ab + 3a (2c) + 2ba + 2b (βb) + 2b (2c) β ca β c (βb) β c (2c)
Rewrite using the commutative property of multiplication.
3a^2 β 3ab + 3 β
2ac + 2ba + 2b (βb) + 2b (2c) β ca β c (βb) β c (2c)
3a^2 β 3ab + 6ac + 2ba + 2b (βb) + 2b (2c) β ca β c (βb) β c (2c)
Rewrite using the commutative property of multiplication.
3a^2 β 3ab + 6ac + 2ba + 2 β
β1b β
b + 2b (2c) β ca β c (βb) β c (2c)
3a^2 β 3ab + 6ac + 2ba + 2 β
β1 (b β
b) + 2b (2c) β ca β c (βb) β c (2c)
3a^2 β 3ab + 6ac + 2ba + 2 β
β1b^2 + 2b (2c) β ca β c (βb) β c (2c)
3a^2 β 3ab + 6ac + 2ba β 2b^2 + 2b (2c) β ca β c (βb) β c (2c)
Rewrite using the commutative property of multiplication.
3a^2 β 3ab + 6ac + 2ba β 2b^2 + 2 β
2bc β ca β c (βb) β c (2c)
3a^2 β 3ab + 6ac + 2ba β 2b^2 + 4bc β ca β c (βb) β c (2c)
Rewrite using the commutative property of multiplication.
3a^2 β 3ab + 6ac + 2ba β 2b^2 + 4bc β ca β 1 β
β1cb β c (2c)
3a^2 β 3ab + 6ac + 2ba β 2b^2 + 4bc β ca + 1cb β c (2c)
3a^2 β 3ab + 6ac + 2ba β 2b^2 + 4bc β ca + cb β c (2c)
Rewrite using the commutative property of multiplication.
3a^2 β 3ab + 6ac + 2ba β 2b^2 + 4bc β ca + cb β 1 β
2c β
c
3a^2 β 3ab + 6ac + 2ba β 2b^2 + 4bc β ca + cb β 1 β
2 (c β
c)
3a^2 β 3ab + 6ac + 2ba β 2b^2 + 4bc β ca + cb β 1 β
2c^2
3a^2 β 3ab + 6ac + 2ba β 2b^2 + 4bc β ca + cb β 2c^2
3a^2 β 3ab + 2ab + 6ac β 2b^2 + 4bc β ca + cb β 2c^2
3a^2 β ab + 6ac β 2b^2 + 4bc β ca + cb β 2c^2
3a^2 β ab β 2b^2 + 4bc + 6ac β 1ac + cb β 2c^2
3a^2 β ab β 2b^2 + 4bc + 5ac + cb β 2c^2
3a^2 β ab β 2b^2 + 4bc + bc + 5ac β 2c^2
3a^2 β ab β 2b^2 + 5bc + 5ac β 2c^2
3a^2 β ab β 2b^2 + 5ac + 5bc β 2c^2
3a^2 β ab + 5ac β 2b^2 + 5bc β 2c^2